package com.xiong.miaosha.controller;

import com.xiong.miaosha.access.UserContext;
import com.xiong.miaosha.domain.MiaoshaUser;
import com.xiong.miaosha.redis.GoodsKey;
import com.xiong.miaosha.redis.RedisService;
import com.xiong.miaosha.result.Result;
import com.xiong.miaosha.service.GoodsService;
import com.xiong.miaosha.service.MiaoshaUserService;
import com.xiong.miaosha.vo.GoodsDetailVo;
import com.xiong.miaosha.vo.GoodsVo;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.thymeleaf.context.WebContext;
import org.thymeleaf.spring5.view.ThymeleafViewResolver;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;

/**
 * @author wardseptember
 * @create 2020-03-16 10:02
 */
@RequestMapping("/goods")
@Controller
public class GoodsController {

    private static Logger log = LoggerFactory.getLogger(GoodsController.class);

    @Autowired
    MiaoshaUserService miaoshaUserService;

    @Autowired
    RedisService redisService;

    @Autowired
    GoodsService goodsService;

    @Autowired
    ThymeleafViewResolver thymeleafViewResolver;

    @Autowired
    ApplicationContext applicationContext;

    @RequestMapping("/to_list")
    @ResponseBody
    public String list(HttpServletRequest request, HttpServletResponse response, Model model, MiaoshaUser user) {
        String html = redisService.get(GoodsKey.getGoodsList, "", String.class);
        if (!StringUtils.isEmpty(html)) {
            return html;
        }
        model.addAttribute("user", user);
        List<GoodsVo> goodsList = goodsService.listGoodsVo();
        model.addAttribute("goodsList", goodsList);
        WebContext ctx = new WebContext(request, response, request.getServletContext(), request.getLocale(), model.asMap());
        // spring boot 1.5.8
        // SpringWebContext ctx = new SpringWebContext(request, response, request.getServletContext(), request.getLocale(), model.asMap(), applicationContext);
        html = thymeleafViewResolver.getTemplateEngine().process("goods_list", ctx);
        if (!StringUtils.isEmpty(html)) {
            redisService.set(GoodsKey.getGoodsList, "", html);
        }
        return html;
    }

    @RequestMapping(value = "/to_detail2/{goodsId}", produces = "text/html")
    @ResponseBody
    public String detail2(HttpServletRequest request, HttpServletResponse response, Model model, MiaoshaUser user, @PathVariable("goodsId") long goodsId) {
        model.addAttribute("user", user);
        String html = redisService.get(GoodsKey.getGoodsDetail, "", String.class);
        if (!StringUtils.isEmpty(html)) {
            return html;
        }
        GoodsVo goods = goodsService.getGoodsVoByGoodsId(goodsId);
        model.addAttribute("goods", goods);
        long startAt = goods.getStartDate().getTime();
        long endAt = goods.getEndDate().getTime();
        long now = System.currentTimeMillis();
        int miaoshaStatus = 0;
        int remainSeconds = 0;
        if (now < startAt) {
            miaoshaStatus = 0;
            remainSeconds = (int) (startAt - now) / 1000;
        } else if (now > endAt) {
            miaoshaStatus = 2;
            remainSeconds = -1;
        } else {
            miaoshaStatus = 1;
            remainSeconds = 0;
        }
        model.addAttribute("miaoshaStatus", miaoshaStatus);
        model.addAttribute("remainSeconds", remainSeconds);
        WebContext ctx = new WebContext(request, response, request.getServletContext(), request.getLocale(), model.asMap());
        // spring boot 1.5.8
        // SpringWebContext ctx = new SpringWebContext(request, response, request.getServletContext(), request.getLocale(), model.asMap(), applicationContext);        html = thymeleafViewResolver.getTemplateEngine().process("goods_detail", ctx);
        if (!StringUtils.isEmpty(html)) {
            redisService.set(GoodsKey.getGoodsDetail, "", html);
        }
        return html;
    }

    @RequestMapping(value="/detail/{goodsId}")
    @ResponseBody
    public Result<GoodsDetailVo> detail(HttpServletRequest request, HttpServletResponse response, Model model, MiaoshaUser user,
                                        @PathVariable("goodsId")long goodsId) throws Exception{
        MiaoshaUser user1 = UserContext.getUser();
        model.addAttribute("user", user1);
        GoodsVo goods = goodsService.getGoodsVoByGoodsId(goodsId);
        long startAt = goods.getStartDate().getTime();
        long endAt = goods.getEndDate().getTime();
        long now = System.currentTimeMillis();
        int miaoshaStatus = 0;
        int remainSeconds = 0;
        if(now < startAt ) { //秒杀还没开始，倒计时
            miaoshaStatus = 0;
            remainSeconds = (int)((startAt - now )/1000);
        }else  if(now > endAt){ //秒杀已经结束
            miaoshaStatus = 2;
            remainSeconds = -1;
        }else {//秒杀进行中
            miaoshaStatus = 1;
            remainSeconds = 0;
        }
        GoodsDetailVo vo = new GoodsDetailVo();
        goods.setStartDateTime(startAt);
        log.info(goods.toString());
        vo.setGoods(goods);
        vo.setUser(user);
        vo.setRemainSeconds(remainSeconds);
        vo.setMiaoshaStatus(miaoshaStatus);
        return Result.success(vo);
    }
}
